Mobil 1 10W-40 Full Synthetic Motor Oil is specially formulated to keep your engine running like new by providing exceptional wear protection, cleaning power and overall performance. The oil helps to reduce deposits and sludge to protect your engine and give it a longer-lasting life. This Mobil 1 High Mileage Oil, 5qt, is formulated to protect the parts in high-mileage engines, making it suitable for older vehicles. The oil also contains a seal conditioner to keep the engine seals in optimal condition and to prevent leaks. With excellent lubrication properties, this product can be used in passenger cars, SUVs, light vans and trucks.